Product Search Search Effective Health Care website Submit search Search Tip: Use double quotes around phrases to rank exact matches higher in the result list. 2 results Systematic Review Update of Venous Thromboembolism Prophylaxis in Orthopedic Surgery Research Protocol Archived February 17, 2016 Chronic Venous Ulcers: A Comparative Effectiveness Review of Treatment Modalities Research Protocol Archived March 5, 2012